package demo603;


import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class UserDao {
    private static  DbUntil dbUntil = new DbUntil();
    Connection connection = dbUntil.getCon();
    public UserDao() throws  ClassNotFoundException, SQLException {

    }
    public User findUser(String username,String password) throws SQLException {
        String sql = "select * from user where username = ? and password = ?";
        PreparedStatement preparedStatement = connection.prepareStatement(sql);
        preparedStatement.setString(1, username);
        preparedStatement.setString(2, password);
        ResultSet resultSet = preparedStatement.executeQuery();
        User user = new User();
        if (resultSet.next()) {
            int id = resultSet.getInt("id");
            String name = resultSet.getString("username");
            String pass = resultSet.getString("password");
            user = new User(id, username, password);
            user.setId(id);
            user.setUsername(name);
            user.setPassword(password);

        }
        return user;
    }
}
